For detailed information about the amounts and types of (a) sex and nudity, (b) violence and gore, (c) profanity, (d) alcohol, drugs, and smoking, and (e) frightening and intense scenes in this movie, consult the IMDb Parents Guide for this movie. The Parents Guide for TRON: Legacy can be found here.

Not necessary, but recommended. The original TRON answers a few questions such as how Flynn gained control of Encom, more backstory on himself, Alan Bradley and by extension Tron too. Why Flynn was motivated to create such a world and It also explains why there just happens to be a laser pointed right at the chair that sends Sam into the digital world of TRON.

The original Tron was an experimental production back in 1982, involving large amounts of work and created at great financial expense, but its box office success was considered to be moderate. However, over the next decade, the movie started to gather a cult following that did not go unnoticed. Disney had been floating a sequel around since the 1990s but it really started to solidify in 2008 when a teaser trailer, directed by Joseph Kosinski was screened to the audience at the San Diego ComicCon, where it was a huge hit. The trailer featured Jeff Bridges playing Flynn aged in real time and featured a light cycle race with the Clu program as a rider resembling a young Jeff Bridges. After the teaser was shown, Disney decided to go ahead with an official sequel to Tron.

Kevin Flynn, played by Jeff Bridges was a software engineer for ENCOM computers in Tron who was fired and ended up running his own video arcade called FLYNN'S. At the end of the original Tron he became the CEO of ENCOM.

Yes. The scenes involving him in the 1980's with his son Sam and scenes of his computer counterpart CLU in the present day world of Tron show Jeff as his younger self via the magic of computer manipulation.

Clu 2 is a program based on Kevin Flynn's original Clu program from the first movie. Clu, in the first Tron was a program Kevin used to hack into programs. Clu resembled his user Kevin but spoke in a different voice. The original Clu was derezzed by the Master Control Program (MCP) in the original film. This film's new Clu is actually the program now running Flynn's own created world, called The Grid, and is the film's main antagonist. He was initially created by Flynn as a control program for the new version of the digital world, but turned on his creator.

He is playing his human character of Alan Bradley. Although Tron appears unmasked only briefly in flashback and is hidden for most of the film by his helmet, they have used the same computer de-aging techniques to make Bruce look younger as they have for Jeff Bridges' character of Clu 2. There is also a short flashback to 1989 showing a young computer de-aged Alan getting out of a car. Boxleitner also provides the voice for Tron.

No, Cindy Morgan is not in the film and neither are the characters of Lora and Yori. She appeared as Lora Baines Bradley in an ARG (Alternate Reality Game) Disney event at Wondercon 2010 in San Francisco and the character has been married to Alan Bradley/TRON in the TRON Universe for over 20 years. Morgan performed a voiceover for the MA3A character in the Tron 2.0 video game but she was not asked to be a part of Tron: Legacy, the new TRON Evolution videogame or the animated TRON television series.

Yes and they are updated. The light cycles are basically the same and are used in gladitorial games like in the original "Tron" but they are now also used for transportation. The light stream that is ejected from the back of the bike is no longer limited to 90 degree angles it can know make arcs. The light cycles are activated around a program/user via a wand like device. A car version with two seats and four wheels called the Light Runner also makes an appearance, in adition to a jet. A light cycle based on the original design from the old Tron world can be found at Flynn's appartement, and is briefly used by his son.

In TRON: Legacy there is no MCP. The original MCP program was destroyed in TRON. Although there is no actual 'Master Control Program' in the film, the character of Clu 2 was originally built for a similar purpose and plays the same role in the film.

Because this is a new world not the one from the original movie but a different one created by Kevin Flynn in the late 80s. This new TRON world is called the Grid, and has been running on a server hidden in Flynn's arcade, disconnected from the internet, gradually evolving over the course of 20 years. The basics still seem to be there such as the light cycles, recognizers and solar sails. According to Joe Kosinski, "The idea is that the Grid was created in the 1980s and evolved independent of the outside world. Syd Mead and Moebius' designs for the original Tron very much had an early 80s aesthetic, and it was fun to take these 1980s influences and evolve it forward within this particular world."-source

No, it is not, but that is due to the filmmaker's wishes. The "real world" footage is presented in 2-D, and the "Electronic world" footage is presented in 3-D, as per the filmmaker's intentions. A disclaimer clarifies this before the opening credits in the 3-D versions of the film and advises that the audience put on their 3-D glasses right then and there due to the Disney logo and the opening credits being presented in 3-D.

The exact way isn't fully explained but Quorra had Kevin Flynn's disk when she went through the portal, the very same disk that Clu was after the entire film. Clu wanted Flynn's disk to bring an army of programs to the real world. It is possible that the code on a user's disk is able, with the digitizer laser, to make a program into a flesh and blood human being just as the digitizer makes a human into a digital being. Also consider that Quorra is shown to have DNA (or a similar structure) and that Kevin Flynn believes the ISOs will have immense positive impact on humanity outside of the computer. Quorra is obviously not just a program but has human or humanoid characteristics that allowed her to be transported into the real world along with Sam. They were both within the beam after Sam releases his father's disk to transport himself back to the real world. Sam obviously is able to return; it is implied that Quorra is human enough to do so as well.

Kevin created C.L.U in order to help him make "the perfect world". When he reveals to C.L.U that the perfect world can't be created, C.L.U no longer has a purpose. For C.L.U, a "perfect world" represents a world where everything has a goal, a purpose. If the perfect world cannot be created, C.L.U becomes a useless program and therefore has no purpose. It may also be that C.L.U. feels that Flynn lied to him or betrayed him by giving him a directive that could never be fulfilled.

Flynn, Sam and Quorra head towards the portal they are cut off by CLU. CLU then attacks Flynn and so Sam attempts to fight CLU but Quorra comes between them. Flynn tells CLU to remember what he came for (Flynn's user disk) and so CLU turns his attention back to Flynn, allowing Quorra and Sam to head for the portal. CLU takes Flynn's user disk and finds that Flynn switched his with Quorra's. CLU tries one last-ditch effort to enter the portal but Flynn pulls him back and then Flynn destroys CLU, CLU's war ship and army along with it and presumably himself. On the outside world, Sam takes a flash drive out of the machine and put it on a chain around his neck. It wasn't exactly clear what this was but we can assume he had backed up the system on this drive. As he goes to leave the arcade. Alan Bradley is waiting for him. Sam tells Alan that he is making Alan CEO of Encom and that Sam is taking control of the company. Lastly, Sam walks outside where Quorra is waiting for him. Sam says he wants to show her something, so he takes her for a ride to the city as she takes in the world before her eyes.

It's possible but not very likely. He sacrifices himself to save Kevin, Sam and Quorra, crashes into the ocean, and is seen sinking to the depths. The last we see is his red suit become the blueish white of the users. Because we never see him de-rez, he most likely has survived. Since these movies are called Tron, it's likely the title character will be around for the third outing.

Since he was in the computer world when he supposedly died, it is really not known. The movies have never explored what would happen if a digitized human died in the computer. If Jeff Bridges decides to come back for the sequel, they will most likely think of a creative way to bring him back or explain that he was never dead to begin with. It's also entirely possible that Kevin Flynn will come back in another form in the computer totally unrelated to his digitized form.

The "Discs of TRON" arcade cabinet is indeed in the film, seen when Sam kneels down to pick up his quarter after it drops out of the coin return of the TRON game in Flynn's arcade. However, if one looks carefully at the "Discs of TRON" cabinet in the film, they can spot the logo of Bally / Midway, the actual makers of the game, instead of the ENCOM logo, the in-film makers of the TRON game.